// 1. start the dev server using production config
process.env.NODE_ENV = 'testing';

const webpack = require('webpack');
const DevServer = require('webpack-dev-server');

const webpackConfig = require('../../build/webpack.prod.conf');
const devConfigPromise = require('../../build/webpack.dev.conf');

let server;

devConfigPromise
    .then(devConfig => {
        const devServerOptions = devConfig.devServer;
        const compiler = webpack(webpackConfig);
        server = new DevServer(compiler, devServerOptions);
        const port = devServerOptions.port;
        const host = devServerOptions.host;
        return server.listen(port, host);
    })
    .then(() => {
        // 2. run the nightwatch test suite against it
        // to run in additional browsers:
        //    1. add an entry in test/e2e/nightwatch.conf.json under "test_settings"
        //    2. add it to the --env flag below
        // or override the environment flag, for example: `npm run e2e -- --env chrome,firefox`
        // For more information on Nightwatch's config file, see
        // http://nightwatchjs.org/guide#settings-file
        let opts = process.argv.slice(2);
        if (opts.indexOf('--config') === -1) {
            opts = opts.concat(['--config', 'test/e2e/nightwatch.conf.js']);
        }
        if (opts.indexOf('--env') === -1) {
            opts = opts.concat(['--env', 'chrome']);
        }

        const spawn = require('cross-spawn');
        const runner = spawn('./node_modules/.bin/nightwatch', opts, { stdio: 'inherit' });

        runner.on('exit', function (code) {
            server.close();
            process.exit(code);
        });

        runner.on('error', function (err) {
            server.close();
            throw err;
        });
    });
